Up in the mountains outside Cali, Colombia there is a plentiful and colorful species of hummingbird about the size of an adult Cardinal. There are swarms of them. The climate is conducive to all manner and form of tropical flora. These birds can be rather territorial and scrapping among them is something to behold and appears to be a favorite pastime. As my brother, who resides there, said of the birds - "they're a$$holes and enjoy fighting".